flatten

sknano.core.itertools.flatten(items, ignore_types=(<class 'str'>, <class 'bytes'>))

Yields single sequence of values with no nesting [PythonCookbook]

Parameters:

• items (sequence) – nested sequence that you want to flatten into a single sequence with no nesting
• ignore_types (tuple, optional) – tuple of Iterable types to that should not be interpreted as Iterables to be flattened. Default is (str, bytes) to prevent strings and bytes from being interpreted as iterables and expanded as individual characters.

Yields:

sequence – single sequence with no nesting

Examples

>>> items = [1, 2, [3, 4, [5, 6], 7], 8]
>>> from sknano.core import flatten
>>> items = list(flatten(items))
>>> print(items)
[1, 2, 3, 4, 5, 6, 7, 8]